Source: NYC Open Data historical vital-record indexes
Marriage index URL: https://data.cityofnewyork.us/resource/j62e-7maa.json
Birth index URL: https://data.cityofnewyork.us/resource/5gq7-rgmv.json
Captured: 2026-07-06

Local source copies:
- artifacts/evidence/us-vitals/nyc-marriage-index-callaghan-1860-1880-nearby.json
- artifacts/evidence/us-vitals/nyc-marriage-index-green-target-names-1868-1905.json
- artifacts/evidence/us-vitals/nyc-marriage-index-greene-target-names-1868-1905.json
- artifacts/evidence/us-vitals/nyc-birth-index-green-daughters-1870-1877-no-match.json

Why this matters:
These official NYC index searches were used to check whether easy public index rows could explain the Green/Callaghan family after the 1870 Patrick Green and Elizabeth Callaghan marriage.

What was checked:

- Callaghan marriage-index rows around 1860-1880, to see the nearby Callaghan marriage context around Elizabeth Callaghan's 1870 Manhattan certificate 6724.
- Green and Greene marriage-index rows from 1868-1905 for likely family names: Agnes, Ann, Anna, Annie, Mary, Margaret, Patrick, Charles, Alfred, and Jacob.
- Green birth-index rows from 1870-1877 for likely daughter names: Mary, Margaret, Agnes, Ann, Anna, and Annie.

Result:

- The official marriage index still shows Patrick Green and Elizabeth Callaghan on Manhattan certificate 6724, dated Oct. 19, 1870.
- The broader Green/Greene marriage-index searches produced many common-name rows, but no clean row tied to the known later spouses or to the Patrick Green / Callaghan family.
- The focused Green birth-index search for likely daughter names from 1870-1877 returned no likely daughter rows.

Research caution:
This is useful negative evidence. It does not prove that the daughters were not born in New York City, because the index may be incomplete, spellings may differ, births may have gone unregistered, or the family may have moved. It simply documents that the easy official NYC index route did not resolve Agnes's direct parent link or the Elizabeth-vs-Margaret Callaghan name conflict.